5001335221 has 2 divisors, whose sum is σ = 5001335222. Its totient is φ = 5001335220.

The previous prime is 5001335219. The next prime is 5001335243. The reversal of 5001335221 is 1225331005.

It is an a-pointer prime, because the next prime (5001335243) can be obtained adding 5001335221 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2793651025 + 2207684196 = 52855^2 + 46986^2 .

It is a cyclic number.

It is not a de Polignac number, because 5001335221 - 2¹ = 5001335219 is a prime.

Together with 5001335219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 5001335192 and 5001335201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5001335821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500667610 + 2500667611.

It is an arithmetic number, because the mean of its divisors is an integer number (2500667611).

Almost surely, 2^5001335221 is an apocalyptic number.

It is an amenable number.

5001335221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5001335221 is an equidigital number, since it uses as much as digits as its factorization.

5001335221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 5001335221 is about 70720.1189266534. The cubic root of 5001335221 is about 1710.1281461824.

Adding to 5001335221 its reverse (1225331005), we get a palindrome (6226666226).

The spelling of 5001335221 in words is "five billion, one million, three hundred thirty-five thousand, two hundred twenty-one".